The chemical reactions that dust storms on Mars cause indicate that our quest to find life on the red planet may need to go beneath the surface.

A new machine can mimic the swirls that the blast of a supernova explosion creates. Check out the show for yourself.

The Xenon 1T experiment may have found signs of a previously undetected dark matter particle.

Signal from 500 million light years away is the first periodic pattern of radio bursts detected.

New models could inform researchers working to get the very first picture of Sagittarius A*, the supermassive black hole at the Milky Way's center.

Martian meteorites allow scientists here on Earth to decode that planet's geology, more than a decade before the first missions are scheduled to bring rocks back home from Mars.

"This tells us that the basic organic chemistry needed for life is present in the raw gas prior to the formation of stars and planets."

Danielle Frostig, a physics graduate student, is developing an instrument to study how the heaviest elements in the universe are produced.

Tiny meteoroids on a far off asteroid could explain how we got both water and "stardust" on Earth.

When it comes to commercial space tourism, suborbital flight are the first frontier. But what are the risks? Are there health requirements? What should you know before taking such a way-out trip?